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NWA 10228 Feldspathic Lunar Melt Matrix Breccia Meteorite 9.64 gram main mass

This product data sheet is originally written in English.


NWA 10228 

LUNAR METEORITE
FELDSPATHIC LUNAR MELT MATRIX BRECCIA 
9.64 GRAM MAIN MASS

 
OFFICIAL CLASSIFICATION DATA SOURCE:
The Meteoritical Society
International Society for Meteoritics and Planetary Science
Lunar and Planetary Institute
Meteoritical Bulletin Database

Northwest Africa 10228
Basic information
Name: Northwest Africa 10228
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10228 
Observed fall: No
Year found: 2015
Country: (Northwest Africa) 
Mass: 19.4 g
Classification
  history:
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 73 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments:Approved 4 Sep 2015
Writeup
Writeup from MB 104: 

Northwest Africa 10228 (NWA 10228)

(Northwest Africa)

Purchased: 2015 May

Classification: Lunar meteorite (feldspathic breccia)

History: Purportedly found near Laagad, east of Assa, Morocco and purchased by John Higgins from a dealer in Ouarzazate in May 2015.

Petrography: (A. Irving and S. Kuehner, UWS) Very fine-grained breccia consisting of small mineral clasts of anorthite, olivine, pigeonite, augite, ilmenite, kamacite, troilite, merrillite, plus rare grains of rutile and baddeleyite, within a melt-textured intersertal matrix.

Geochemistry: Olivine (Fa25.6-26.2, FeO/MnO = 91-103, N = 4), pigeonite (Fs 22.0-24.3Wo6.6-8.0, FeO/MnO = 50-60, N = 3), augite (Fs14Wo37.4, FeO/MnO = 44).

Classification: Lunar (feldspathic melt-matrix breccia)

Specimens: 4.15 g including one polished slice at UWB; main mass with Mr. J. Higgins.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Ouarzazate
Date:P 2015 May
Mass (g):19.4
Pieces:1
Class:Lunar (feldsp. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):25.6-26.2
Ferrosilite (mol%):22.0-24.3; 14.0
Wollastonite (mol%):6.6-8.0; 37.4
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):4.15
Type spec location:UWB
Main mass:J. Higgins
Comments:JH15-4; submitted by A. Irving
Institutions
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Catalogs:
References:Published in Meteoritical Bulletin, no. 104, in preparation (2015)
GUARANTEED AUTHENTICITY
Member of the Meteoritical Society & International Meteorite Collectors Association #9822 The authenticity of this meteorite comes with a 100% guarantee. Signed Certificate of Authenticity included. First class delivery and provenance provided. 1cm scale cube for reference purposes.
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History: Purportedly found near Laagad, east of Assa, Morocco and purchased by John Higgins from a dealer in Ouarzazate in May 2015. Petrography: (A. Irving and S. Kuehner, UWS) Very fine-grained breccia consisting of small mineral clasts of anorthite, olivine, pigeonite, augite, ilmenite, kamacite, troilite, merrillite, plus rare grains of rutile and baddeleyite, within a melt-textured intersertal matrix. UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) Member of the Meteoritical Society & International Meteorite Collectors Association #9822 The authenticity of this meteorite comes with a 100% guarantee. Signed Certificate of Authenticity included. First class delivery and
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